OPA2188 datasheet(3/26 Pages) TI1

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OPA2188

www.ti.com

SBOS525B – AUGUST 2011 – REVISED SEPTEMBER 2012

ELECTRICAL CHARACTERISTICS:

High-Voltage Operation, VS = ±4 V to ±18 V (VS = +8 V to +36 V)

At TA = +25°C, RL = 10 kΩ connected to VS / 2, and VCOM = VOUT = VS / 2, unless otherwise noted.

OPA2188

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

OFFSET VOLTAGE

μV

VOS

Input offset voltage

TA = –40°C to +105°C

0.03

0.085

μV/°C

VS = 4 V to 36 V, VCM = VS / 2

0.075

0.3

μV/V

PSRR

Power-supply rejection ratio

VS = 4 V to 36 V, VCM = VS / 2,

0.3

μV/V

TA = –40°C to +105°C

Long-term stability

4(1)

μV

Channel separation, dc

μV/V

INPUT BIAS CURRENT

VCM = VS / 2

±160

±850

Input bias current

TA = –40°C to +105°C

±4

±320

±1700

IOS

Input offset current

TA = –40°C to +105°C

±2

NOISE

Input voltage noise

f = 0.1 Hz to 10 Hz

0.25

μVPP

Input voltage noise density

f = 1 kHz

8.8

nV/Hz

Input current noise density

f = 1 kHz

fA/Hz

INPUT VOLTAGE RANGE

VCM

Common-mode voltage range

V–

(V+) – 1.5

(V–) < VCM < (V+) – 1.5 V

120

134

(V–) + 0.5 V < VCM < (V+) – 1.5 V,

130

146

CMRR

Common-mode rejection ratio

VS = ±18 V

(V–) + 0.5 V < VCM < (V+) – 1.5 V,

120

126

VS = ±18 V, TA = –40°C to +105°C

INPUT IMPEDANCE

Differential

100 || 6

Ω || pF

Common-mode

6 || 9.5

1012

Ω || pF

OPEN-LOOP GAIN

(V–) + 500 mV < VO < (V+) – 500 mV,

130

136

RL = 10 kΩ

AOL

Open-loop voltage gain

(V–) + 500 mV < VO < (V+) – 500 mV,

120

126

RL = 10 kΩ, TA = –40°C to +105°C

FREQUENCY RESPONSE

GBW

Gain-bandwidth product

MHz

Slew rate

G = +1

0.8

μs

Settling time, 0.1%

VS = ±18 V, G = 1, 10-V step

μs

Settling time, 0.01%

VS = ±18 V, G = 1, 10-V step

μs

Overload recovery time

VIN × G = VS

μs

THD+N

Total harmonic distortion + noise

1 kHz, G = 1, VOUT = 1 VRMS

0.0001

(1)

1000-hour life test at +125°C demonstrated randomly distributed variation in the range of measurement limits—approximately 4

μV.

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